A long-term genetic model for the evolution of sexual preference: the theories of Fisher and Zahavi re-examined

Autor: Emilia Sansone, Frans Jacobs, Ilan Eshel
Rok vydání: 2002
Předmět:
Zdroj: Journal of Mathematical Biology. 45:1-21
ISSN: 1432-1416
0303-6812
DOI: 10.1007/s002850200138
Popis: Long-term co-evolution of male's sexual extravagance and female's preference for it is studied. Fisher's ``Sexy Son'' principle is checked against Zahavi's Handicap Principle. It is shown that although both principles are equally likely to explain this sort of co-evolution in the short run, only the second one allows for a long-term evolutionarily stable females' preference for costly male's extravagance. It is shown, however, that Fisher's argument, although not sufficient on its own to explain long-term persistence of females' choice, may tacitly appear as an indispensable component for the application of Zahavi's theory to the important case of dense polygenous populations.
Databáze: OpenAIRE